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Finding the Fourth Proportional to 577,361.94, 859,954.80 and 551,456.93

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Solution

The fourth proportional to 577,361.94, 859,954.80 and 551,456.93 is: 821,370.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,361.94 : 859,954.80 = 551,456.93 : x
  2. Step 2: Convert to fraction form
    577,361.94/859,954.80 = 551,456.93/x
  3. Step 3: Cross multiply
    577,361.94x = 859,954.80 × 551,456.93
  4. Step 4: Simplify right side
    577,361.94x = 474,228,031,189.48
  5. Step 5: Solve for x
    x = 474,228,031,189.48/577,361.94
  6. Step 6: Final answer
    x = 821,370.44

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.